What planners/diaries/organisers are you all using?

Hello all current trainee/student teachers,
Have just got a place on a PGCE course and wanted to know what planner/diary/organiser you use to keep you organised? Currently in my final year undergrad and am using Cottrell's Palgrave Student Planner. This is pretty much rammed on a daily basis with little space left. Having been told by the university for the PGCE course that my days are likely to be 9-5 I know that this will no longer be suitable for me. I write all appointments, daily schedule, 'homework' tasks I will need to do before next lecture, sporting activities, and social life activites as well as reminders and to do lists. Only thing I think will do the job is a Filofax but these are quite pricey and am living on a budget! I don't think I will need the 'Teachers Planner' as, well, I'm not teaching full time!

For my birthday my mum bought me a Dodo Acad pad.
It is the best diary I have ever owned and would be lost without it. It has a week per page with columns to customise as well an empty page for all those to do lists etc. It is packed with silly quotes, puzzles and facts that makes opening it each time a treat. I love it and would definitely recommend it for all students and student teachers as it has plenty of room for all those little notes and tasks.

Google Tasks- http://mail.google.com/mail/help/tasks/ and also Google Calendar.
I've set it up to send me a text message every day with reminders of what I have to do, and a reminder half an hour before any event.

On placements, I'll have it send me a reminder before I leave for things like "Bring Literacy books back" so I don't forget to pack them.